1
|
Adeyanju MM, Ademakinwa AN. Tyrosinase from the pulps of local cultivars of Musa spp: Purification, characterization, immobilization, and application in the batch production of l-3,4-dihydroxyphenylalanine. Prep Biochem Biotechnol 2024; 54:1098-1105. [PMID: 38445841 DOI: 10.1080/10826068.2024.2324084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Tyrosinase, an enzyme involved in browning reactions in plants/crops exposed to mechanical injury, was isolated from the pulp of some different locally available bananas (M. cavendish, M. acuminata, and M. paradisiaca). Tyrosinase from the pulps was extracted, purified, immobilized, and characterized. Thereafter, the potentials of the immobilized tyrosinase in the possible production of l-3,4-dihydroxyphenylalanine (L-DOPA) in an improvised batch reactor was exploited using tyrosine and ascorbate as the substrates. L-DOPA production was monitored via thin-layer chromatography and spectrophotometry (Arnow's method). L-DOPA is a drug that is used in the treatment of Parkinson's disease. Hence, this study exploited a non-chemical route for its synthesis using the tyrosinase obtained from the banana pulps. The purified tyrosinase had an optimum pH and temperature of 6.5 and 7.0, respectively. The molecular weight of the purified tyrosinase was 45 kDa. Quercetin and resorcinol both competitively inhibited the purified tyrosinase from the three cultivars. Immobilized M. cavendish tyrosinase produced the highest concentration (0.60 mM) of L-DOPA after 8 h in an improvised batch reactor. The tyrosinase in the banana pulps serves as a cheap and readily available green route for the possible production of L-DOPA.
Collapse
|
2
|
Çiçek Özkul SL, Kaba İ, Ozdemir Olgun FA. Unravelling the potential of magnetic nanoparticles: a comprehensive review of design and applications in analytical chemistry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3620-3640. [PMID: 38814019 DOI: 10.1039/d4ay00206g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
The study of nanoparticles has emerged as a prominent research field, offering a wide range of applications across various disciplines. With their unique physical and chemical properties within the size range of 1-100 nm, nanoparticles have garnered significant attention. Among them, magnetic nanoparticles (MNPs) exemplify promising super-magnetic characteristics, especially in the 10-20 nm size range, making them ideal for swift responses to applied magnetic fields. In this comprehensive review, we focus on MNPs suitable for analytical purposes. We investigate and classify them based on their analytical applications, synthesis routes, and overall utility, providing a detailed literature summary. By exploring a diverse range of MNPs, this review offers valuable insights into their potential application in various analytical scenarios.
Collapse
Affiliation(s)
- Serra Lale Çiçek Özkul
- Istanbul Technical University, Faculty of Science and Letters, Department of Chemistry, Maslak Campus, Sariyer, Istanbul, Turkey
| | - İbrahim Kaba
- Marmara University, Faculty of Engineering, Department of Chemical Engineering, Maltepe, Istanbul, Turkey
| | - Fatos Ayca Ozdemir Olgun
- Istanbul Health and Technology University, Faculty of Engineering and Natural Sciences, Department of Chemical Engineering, Sutluce, Beyoglu, Istanbul, Turkey.
| |
Collapse
|
3
|
Abdel Maksoud MIA, Fahim RA, Shalan AE, Abd Elkodous M, Olojede SO, Osman AI, Farrell C, Al-Muhtaseb AH, Awed AS, Ashour AH, Rooney DW. Advanced materials and technologies for supercapacitors used in energy conversion and storage: a review. ENVIRONMENTAL CHEMISTRY LETTERS 2021; 19:375-439. [DOI: 10.1007/s10311-020-01075-w] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 08/06/2020] [Indexed: 09/02/2023]
Abstract
AbstractSupercapacitors are increasingly used for energy conversion and storage systems in sustainable nanotechnologies. Graphite is a conventional electrode utilized in Li-ion-based batteries, yet its specific capacitance of 372 mA h g−1 is not adequate for supercapacitor applications. Interest in supercapacitors is due to their high-energy capacity, storage for a shorter period and longer lifetime. This review compares the following materials used to fabricate supercapacitors: spinel ferrites, e.g., MFe2O4, MMoO4 and MCo2O4 where M denotes a transition metal ion; perovskite oxides; transition metals sulfides; carbon materials; and conducting polymers. The application window of perovskite can be controlled by cations in sublattice sites. Cations increase the specific capacitance because cations possess large orbital valence electrons which grow the oxygen vacancies. Electrodes made of transition metal sulfides, e.g., ZnCo2S4, display a high specific capacitance of 1269 F g−1, which is four times higher than those of transition metals oxides, e.g., Zn–Co ferrite, of 296 F g−1. This is explained by the low charge-transfer resistance and the high ion diffusion rate of transition metals sulfides. Composites made of magnetic oxides or transition metal sulfides with conducting polymers or carbon materials have the highest capacitance activity and cyclic stability. This is attributed to oxygen and sulfur active sites which foster electrolyte penetration during cycling, and, in turn, create new active sites.
Collapse
|
4
|
Ayyanaar S, Balachandran C, Bhaskar RC, Kesavan MP, Aoki S, Raja RP, Rajesh J, Webster TJ, Rajagopal G. ROS-Responsive Chitosan Coated Magnetic Iron Oxide Nanoparticles as Potential Vehicles for Targeted Drug Delivery in Cancer Therapy. Int J Nanomedicine 2020; 15:3333-3346. [PMID: 32494133 PMCID: PMC7229795 DOI: 10.2147/ijn.s249240] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 04/18/2020] [Indexed: 12/14/2022] Open
Abstract
Background and Objective Cancer cells accumulate high concentrations of reactive oxygen species as a result of their faster and uninhibited metabolic activity. Cancer chemotherapeutic agents release an excess of severe adverse reactions as a result of targeting normal cells. This demands an improvement in targeted drug-delivery systems to selectively discharge anticancer drugs in the vicinity of such highly metabolically and mitotically active cells. Materials and Methods Here, magnetic nanoparticles were synthesized by a traditional co-precipitation technique. Fe3O4@OA-CS-5-FLU-NPs were synthesized by an easy and rapid in situ loading method. The proposed Fe3O4@OA-CS-5-FLU-NPs were productively prepared as well as characterized by various spectroscopic and microscopic studies. Results The targeted drug release profile of the Fe3O4@OA-CS-5-FLU-NPs was studied in the presence of ROS including H2O2 and pH induction. The released product, Fe3O4@OA-CS-5-FLU-NP, exhibited desirable levels of cytotoxicity and demonstrated morphological changes and inhibition of colony formation for A549 and HeLa S3 cancer cells. The IC50 values at 24 hours were 12.9 and 23 μg/mL, respectively. Conclusion In summary, results from the MTT assay, fluorescence staining as well as colony formation assays, revealed that the Fe3O4@OA-CS-5-FLU-NPs were active and safe for anticancer biomedical applications. In summary, the present investigation provides a powerful nanostructured based system for improved cancer theranostics that should be further studied.
Collapse
Affiliation(s)
- Srinivasan Ayyanaar
- PG and Research Department of Chemistry, Chikkanna Government Arts College, Tiruppur 641 602, Tamilnadu, India
| | | | - Rangaswamy Chinnabba Bhaskar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Mookkandi Palsamy Kesavan
- Department of Chemistry, Hajee Karutha Rowther Howdia College, Uthamapalayam 625 533, Tamil Nadu, India
| | - Shin Aoki
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda 278-8510, Japan.,Research Institute of Science and Technology, Tokyo University of Science, Noda 278-8510, Japan
| | | | | | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Gurusamy Rajagopal
- PG and Research Department of Chemistry, Chikkanna Government Arts College, Tiruppur 641 602, Tamilnadu, India
| |
Collapse
|
5
|
Magro M, Venerando A, Macone A, Canettieri G, Agostinelli E, Vianello F. Nanotechnology-Based Strategies to Develop New Anticancer Therapies. Biomolecules 2020; 10:E735. [PMID: 32397196 PMCID: PMC7278173 DOI: 10.3390/biom10050735] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/16/2020] [Accepted: 05/06/2020] [Indexed: 12/14/2022] Open
Abstract
The blooming of nanotechnology has made available a limitless landscape of solutions responding to crucial issues in many fields and, nowadays, a wide choice of nanotechnology-based strategies can be adopted to circumvent the limitations of conventional therapies for cancer. Herein, the current stage of nanotechnological applications for cancer management is summarized encompassing the core nanomaterials as well as the available chemical-physical approaches for their surface functionalization and drug ligands as possible therapeutic agents. The use of nanomaterials as vehicles to delivery various therapeutic substances is reported emphasizing advantages, such as the high drug loading, the enhancement of the pay-load half-life and bioavailability. Particular attention was dedicated to highlight the importance of nanomaterial intrinsic features. Indeed, the ability of combining the properties of the transported drug with the ones of the nano-sized carrier can lead to multifunctional theranostic tools. In this view, fluorescence of carbon quantum dots, optical properties of gold nanoparticle and superparamagnetism of iron oxide nanoparticles, are fundamental examples. Furthermore, smart anticancer devices can be developed by conjugating enzymes to nanoparticles, as in the case of bovine serum amine oxidase (BSAO) and gold nanoparticles. The present review is aimed at providing an overall vision on nanotechnological strategies to face the threat of human cancer, comprising opportunities and challenges.
Collapse
Affiliation(s)
- Massimiliano Magro
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell’Università 16, 35020 Legnaro (PD), Italy; (M.M.); (A.V.)
| | - Andrea Venerando
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell’Università 16, 35020 Legnaro (PD), Italy; (M.M.); (A.V.)
| | - Alberto Macone
- Department of Biochemical Sciences, A. Rossi Fanelli’, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
| | - Gianluca Canettieri
- Pasteur Laboratory, Department of Molecular Medicine, Sapienza University of Rome, I-00161 Rome, Italy;
- International Polyamines Foundation ‘ETS-ONLUS’, Via del Forte Tiburtino 98, 00159 Rome, Italy
| | - Enzo Agostinelli
- Department of Biochemical Sciences, A. Rossi Fanelli’, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
- International Polyamines Foundation ‘ETS-ONLUS’, Via del Forte Tiburtino 98, 00159 Rome, Italy
| | - Fabio Vianello
- Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell’Università 16, 35020 Legnaro (PD), Italy; (M.M.); (A.V.)
- International Polyamines Foundation ‘ETS-ONLUS’, Via del Forte Tiburtino 98, 00159 Rome, Italy
| |
Collapse
|
6
|
Bare Iron Oxide Nanoparticles: Surface Tunability for Biomedical, Sensing and Environmental Applications. NANOMATERIALS 2019; 9:nano9111608. [PMID: 31726776 PMCID: PMC6915624 DOI: 10.3390/nano9111608] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/07/2019] [Accepted: 11/11/2019] [Indexed: 12/20/2022]
Abstract
Surface modification is widely assumed as a mandatory prerequisite for the real applicability of iron oxide nanoparticles. This is aimed to endow prolonged stability, electrolyte and pH tolerance as well as a desired specific surface chemistry for further functionalization to these materials. Nevertheless, coating processes have negative consequences on the sustainability of nanomaterial production contributing to high costs, heavy environmental impact and difficult scalability. In this view, bare iron oxide nanoparticles (BIONs) are arousing an increasing interest and the properties and advantages of pristine surface chemistry of iron oxide are becoming popular among the scientific community. In the authors’ knowledge, rare efforts were dedicated to the use of BIONs in biomedicine, biotechnology, food industry and environmental remediation. Furthermore, literature lacks examples highlighting the potential of BIONs as platforms for the creation of more complex nanostructured architectures, and emerging properties achievable by the direct manipulation of pristine iron oxide surfaces have been little studied. Based on authors’ background on BIONs, the present review is aimed at providing hints on the future expansion of these nanomaterials emphasizing the opportunities achievable by tuning their pristine surfaces.
Collapse
|
7
|
Optimization of Bacillus licheniformis MAL tyrosinase: in vitro anticancer activity for brown and black eumelanin. Heliyon 2019; 5:e01657. [PMID: 31111112 PMCID: PMC6512574 DOI: 10.1016/j.heliyon.2019.e01657] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 04/01/2019] [Accepted: 05/01/2019] [Indexed: 11/21/2022] Open
Abstract
The influence of tyrosinase in catalyzes/stimulates the eumelanin production was studied. Accordingly, bacterial sp. was isolated and identified as Bacillus licheniformis based on 16S rRNA. It could grow and gave monophenolase and diphenolase productivity in medium contained tyrosin and Cu2+ only. The tyrosinase enzymes were optimized by studying different environmental and nutritional factors. The maximum monophenolase and diphenolase productivity were obtained at 60 °C, pH9, Cu2+(0.01g), liver extract (1 g/L) and the oxygen level fixed at 20%. Also, the mannose as a carbon source increased the monophenolase production 6.2 times. For the first time, two types of eumelanin were extracted by hydrochloric acid treatment. The black and brown eumelanin weighed (0.1 g/100 mL and 0.7 g/100 mL respectively) and characterized by using FTIR and UV/Vis spectroscopy techniques. Their morphological structure and its elemental composition were characterized by SEM and EDAX respectively. The black melanin showed promising anticancer activity towards HEPG-2 and HCT-116 cell lines with IC50 values (6.15, 5.54 μg) compared to Doxorubicin (4.05, 4.45 μg) respectively.
Collapse
|
8
|
Utilization of enzyme extract self-encapsulated within polypyrrole in sensitive detection of catechol. Enzyme Microb Technol 2019; 128:34-39. [PMID: 31186108 DOI: 10.1016/j.enzmictec.2019.04.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 04/26/2019] [Accepted: 04/27/2019] [Indexed: 11/20/2022]
Abstract
Utilization of polyphenol oxidases (laccase, tyrosinase) in biosensor technology is an efficient approach towards phenol detection, which is significant in numerous fields such as environmental monitoring, food industry etc. The use of crude extract instead of pure enzyme eliminates the need for costly and laborious processes of enzyme separation and purification. This study employs polyphenol oxidase extract, biosynthesized by white-rot fungi Trametes pubescens (TP) for the development of amperometric biosensors for catechol detection. The catalytic activity of the crude extract was firstly used to induce the bio-synthesis of conducting polymer - polypyrrole (Ppy), resulting in the self-encapsulation of the enzyme extract within the conducting material. The viability and biological integrity of the enzyme extract was preserved after the synthesis and was able to efficiently detect phenolic compounds such as catechol. Comparative evaluations between the biosynthesized Ppy based biosensor (bio-Ppy) and the biosensor based on bio-PPy with additional enzyme extract (bio-Ppy-TP) were performed. Lastly, the performance of these two biosensors was compared with that of a third one, based on chemically synthesized Ppy with enzyme extract (chem-Ppy-TP). All three types of biosensors proved high efficiency for catechol detection at low concentration (1-60 μM) and were employed for real sample detection in fruit wines showing linear correlation with the spectrophotometric results obtained with the Folin-Ciocalteau standard test.
Collapse
|
9
|
Irandoust M, Haghighi M, Taherpour AA, Zolfaghar N. Electrochemical sensing of 2-methyl-4, 6-dinitrophenol by nanomagnetic core shell linked to carbon nanotube modified glassy carbon electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:211-221. [PMID: 30889693 DOI: 10.1016/j.msec.2019.01.117] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 12/31/2018] [Accepted: 01/25/2019] [Indexed: 11/25/2022]
Abstract
Electrochemical behavior and sensing of 2-methyl-4, 6-dinitrophenol as an herbicide has been investigated by cyclic voltammetry (CV) and square wave voltammetry (SWV). We have synthesized a cefazolin (CEF) immobilized nanomagnetic core-shell (Fe3O4@SiO2-(CH2)3-CEF) and attached it on the modified glassy carbon electrode (GCE/MWCNT) through electrostatic adsorption (GCE/MWCNT/CEF-SiO2@Fe3O4). 2-Methyl-4, 6-dinitrophenol has an oxidation peak that is related to the formation of nitrosamine from hydroxylamine species. This peak was applied for quantifying determination of 2-methyl-4, 6-dinitrophenol. The electrochemical oxidation involves two electron transfers accompanied by two protons. The electrochemical process was controlled by adsorption. The good agreement between the obtained computational studies and the experimental results has demonstrated that outer sphere electron transfer occurred on modified electrode. The new electrochemical sensor was applied to determination of 2-methyl-4, 6-dinitrophenol by SWV in the range of 1.0 × 10-10 to 1.5 × 10-7 M with a detection limit of 0.1 nM. The proposed sensor was applied for determination of 2-methyl-4, 6-dinitrophenol in water samples.
Collapse
Affiliation(s)
- Mohsen Irandoust
- Chemistry Faculty, Razi University, P.O. Box: 67149-67346, Kermanshah, Iran.
| | - Maryam Haghighi
- Chemistry Faculty, Razi University, P.O. Box: 67149-67346, Kermanshah, Iran
| | - Avat Arman Taherpour
- Chemistry Faculty, Razi University, P.O. Box: 67149-67346, Kermanshah, Iran; Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Narges Zolfaghar
- Chemistry Faculty, Razi University, P.O. Box: 67149-67346, Kermanshah, Iran
| |
Collapse
|
10
|
Apetrei RM, Cârâc G, Bahrim G, Camurlu P. Sensitivity enhancement for microbial biosensors through cell Self-Coating with polypyrrole. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1525548] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Roxana-Mihaela Apetrei
- Faculty of Food Science and Engineering, “Dunărea de Jos” University of Galati, Domnească Street, 47, Galati, RO-800008, Romania
| | - Geta Cârâc
- Faculty of Science and Environment, “Dunărea de Jos” University of Galati, Domnească Street, 47, Galati, RO-800008, Romania
| | - Gabriela Bahrim
- Faculty of Food Science and Engineering, “Dunărea de Jos” University of Galati, Domnească Street, 47, Galati, RO-800008, Romania
| | - Pinar Camurlu
- Department of Chemistry, Akdeniz University, Antalya, 07058, Turkey
| |
Collapse
|
11
|
Fathi Z, Doustkhah E, Rostamnia S, Darvishi F, Ghodsi A, Ide Y. Interaction of Yarrowia lipolytica lipase with dithiocarbamate modified magnetic carbon Fe3O4@C-NHCS2H core-shell nanoparticles. Int J Biol Macromol 2018; 117:218-224. [DOI: 10.1016/j.ijbiomac.2018.05.156] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 05/19/2018] [Accepted: 05/22/2018] [Indexed: 01/19/2023]
|
12
|
Dong W, Han J, Shi J, Liang W, Zhang Y, Dong C. Amperometric Biosensor for Detection of Phenolic Compounds Based on Tyrosinase, N
-Acetyl-L
-cysteine-capped Gold Nanoparticles and Chitosan Nanocomposite. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600728] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Wenjuan Dong
- Institution of Environmental Science, College of Chemistry and Chemical Engineering; Shanxi University; Taiyuan Shanxi 030006 China
| | - Jiyan Han
- Institution of Environmental Science, College of Chemistry and Chemical Engineering; Shanxi University; Taiyuan Shanxi 030006 China
| | - Jia Shi
- Department of Laboratory Medicine, College of Fenyang; Shanxi Medical University; Fenyang Shanxi 032200 China
| | - Wenting Liang
- Institution of Environmental Science, College of Chemistry and Chemical Engineering; Shanxi University; Taiyuan Shanxi 030006 China
| | - Yuexia Zhang
- Institution of Environmental Science, College of Chemistry and Chemical Engineering; Shanxi University; Taiyuan Shanxi 030006 China
| | - Chuan Dong
- Institution of Environmental Science, College of Chemistry and Chemical Engineering; Shanxi University; Taiyuan Shanxi 030006 China
| |
Collapse
|
13
|
Biosensor Based on Tyrosinase Immobilized on Graphene-Decorated Gold Nanoparticle/Chitosan for Phenolic Detection in Aqueous. SENSORS 2017; 17:s17051132. [PMID: 28509848 PMCID: PMC5470808 DOI: 10.3390/s17051132] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 04/14/2017] [Accepted: 04/21/2017] [Indexed: 02/04/2023]
Abstract
In this research work, electrochemical biosensor was fabricated based on immobilization of tyrosinase onto graphene-decorated gold nanoparticle/chitosan (Gr-Au-Chit/Tyr) nanocomposite-modified screen-printed carbon electrode (SPCE) for the detection of phenolic compounds. The nanocomposite film was constructed via solution casting method. The electrocatalytic activity of the proposed biosensor for phenol detection was studied using differential pulse voltammetry (DPV) and cyclic voltammetry (CV). Experimental parameters such as pH buffer, enzyme concentration, ratio of Gr-Au-Chit, accumulation time and potential were optimized. The biosensor shows linearity towards phenol in the concentration range from 0.05 to 15 μM with sensitivity of 0.624 μA/μM and the limit of detection (LOD) of 0.016 μM (S/N = 3). The proposed sensor also depicts good reproducibility, selectivity and stability for at least one month. The biosensor was compared with high-performance liquid chromatography (HPLC) method for the detection of phenol spiked in real water samples and the result is in good agreement and comparable.
Collapse
|
14
|
An electrochemical lipopolysaccharide sensor based on an immobilized Toll-Like Receptor-4. Biosens Bioelectron 2017; 87:794-801. [DOI: 10.1016/j.bios.2016.09.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 08/20/2016] [Accepted: 09/01/2016] [Indexed: 11/20/2022]
|
15
|
LU Z, WANG Y, ZHANG Z, SHEN Y, LI M. Tyrosinase Modified Poly(thionine) Electrodeposited Glassy Carbon Electrode for Amperometric Determination of Catechol. ELECTROCHEMISTRY 2017. [DOI: 10.5796/electrochemistry.85.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- ZhenYong LU
- School of Chemical Engineering, University of Science and Technology LiaoNing
| | - Yue WANG
- School of Chemical Engineering, University of Science and Technology LiaoNing
| | - ZhiQiang ZHANG
- School of Chemical Engineering, University of Science and Technology LiaoNing
| | - Yang SHEN
- School of Chemical Engineering, University of Science and Technology LiaoNing
| | - MengFan LI
- School of Chemical Engineering, University of Science and Technology LiaoNing
| |
Collapse
|
16
|
Sethuraman V, Muthuraja P, Anandha Raj J, Manisankar P. A highly sensitive electrochemical biosensor for catechol using conducting polymer reduced graphene oxide–metal oxide enzyme modified electrode. Biosens Bioelectron 2016; 84:112-9. [DOI: 10.1016/j.bios.2015.12.074] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/19/2015] [Accepted: 12/21/2015] [Indexed: 02/07/2023]
|
17
|
Moraes Silva S, Tavallaie R, Sandiford L, Tilley RD, Gooding JJ. Gold coated magnetic nanoparticles: from preparation to surface modification for analytical and biomedical applications. Chem Commun (Camb) 2016; 52:7528-40. [PMID: 27182032 DOI: 10.1039/c6cc03225g] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Gold coated magnetic nanoparticles (Au@MNPs) have become increasingly interesting to nanomaterial scientists due to their multifunctional properties and their potential in both analytical chemistry and nanomedicine. The past decade has seen significant progress in the synthesis and surface modification of Au@MNPs. This progress is based on advances in the preparation and characterization of iron/iron oxide nanocrystals with the required surface functional groups. In this critical review, we summarize recent developments in the methods of preparing Au@MNPs, surface functionalization and their application in analytical sensing and biomedicine. We highlight some of the remaining major challenges, as well as the lessons learnt when working with Au@MNPs.
Collapse
Affiliation(s)
- Saimon Moraes Silva
- School of Chemistry and Australian Centre for NanoMedicine, The University of New South Wales, Sydney, NSW 2052, Australia.
| | | | | | | | | |
Collapse
|
18
|
Hua Z, Qin Q, Bai X, Huang X, Zhang Q. An electrochemical biosensing platform based on 1-formylpyrene functionalized reduced graphene oxide for sensitive determination of phenol. RSC Adv 2016. [DOI: 10.1039/c5ra27563f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
A novel electrochemical biosensing platform is proposed. New tyrosinase-based biosensor can be used to detect phenols.
Collapse
Affiliation(s)
- Zulin Hua
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Qin Qin
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Xue Bai
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Xin Huang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Qi Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| |
Collapse
|
19
|
Electrochemical determination of inorganic mercury and arsenic—A review. Biosens Bioelectron 2015; 74:895-908. [DOI: 10.1016/j.bios.2015.07.058] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 07/18/2015] [Accepted: 07/24/2015] [Indexed: 11/17/2022]
|
20
|
Sensitive monitoring of trace nitrophenols in water samples using multiple monolithic fiber solid phase microextraction and liquid chromatographic analysis. Talanta 2015; 134:89-97. [DOI: 10.1016/j.talanta.2014.10.059] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Accepted: 10/28/2014] [Indexed: 12/21/2022]
|
21
|
Ma SD, Feng J, Qin WJ, Ju YY, Chen XG. CuFe2O4@PDA magnetic nanomaterials with a core–shell structure: synthesis and catalytic application in the degradation of methylene blue in water. RSC Adv 2015. [DOI: 10.1039/c5ra09114d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A highly efficient CuFe2O4@PDA MNPs catalyst was synthesized through in situ self-polymerization and application in the degradation of methylene blue.
Collapse
Affiliation(s)
- Su-dai Ma
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
- Department of Chemistry
| | - Jie Feng
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
- Department of Chemistry
| | - Wen-jie Qin
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
- Department of Chemistry
| | - Yu-yun Ju
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
- Department of Chemistry
| | - Xing-guo Chen
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- China
- Department of Chemistry
| |
Collapse
|
22
|
Saeedi I, Hashemi P, Ramezani Z, Badiei A. Dendrimer grafted nanoporous silica as a new coating for headspace solid-phase microextraction fibers. ANALYTICAL METHODS 2015; 7:10185-10191. [DOI: 10.1039/c5ay02463c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Preparation of a SBA-15 silica-supported dendrimer.
Collapse
Affiliation(s)
- Iman Saeedi
- Department of Chemistry
- Faculty of Science
- Lorestan University
- Khoramabad
- Iran
| | - Payman Hashemi
- Department of Chemistry
- Faculty of Science
- Lorestan University
- Khoramabad
- Iran
| | - Zahra Ramezani
- Nanotechnology Research Center
- Faculty of Pharmacy
- Ahvaz Jundishapur University of Medical Sciences
- Ahvaz
- Iran
| | - Alireza Badiei
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
- Iran
| |
Collapse
|
23
|
Hayat A, Catanante G, Marty JL. Current Trends in Nanomaterial-Based Amperometric Biosensors. SENSORS (BASEL, SWITZERLAND) 2014; 14:23439-23461. [PMID: 25494347 PMCID: PMC4299072 DOI: 10.3390/s141223439] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 11/17/2014] [Accepted: 12/01/2014] [Indexed: 12/28/2022]
Abstract
The last decade has witnessed an intensive research effort in the field of electrochemical sensors, with a particular focus on the design of amperometric biosensors for diverse analytical applications. In this context, nanomaterial integration in the construction of amperometric biosensors may constitute one of the most exciting approaches. The attractive properties of nanomaterials have paved the way for the design of a wide variety of biosensors based on various electrochemical detection methods to enhance the analytical characteristics. However, most of these nanostructured materials are not explored in the design of amperometric biosensors. This review aims to provide insight into the diverse properties of nanomaterials that can be possibly explored in the construction of amperometric biosensors.
Collapse
Affiliation(s)
- Akhtar Hayat
- BIOMEM, Universitéde Perpignan, 52 Avenue Paul Alduy, 66860 Perpignan Cedex, France.
| | - Gaëlle Catanante
- BIOMEM, Universitéde Perpignan, 52 Avenue Paul Alduy, 66860 Perpignan Cedex, France.
| | - Jean Louis Marty
- BIOMEM, Universitéde Perpignan, 52 Avenue Paul Alduy, 66860 Perpignan Cedex, France.
| |
Collapse
|
24
|
Microplate based optical biosensor for l-Dopa using tyrosinase from Amorphophallus campanulatus. Anal Chim Acta 2014; 849:50-6. [DOI: 10.1016/j.aca.2014.08.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 08/10/2014] [Indexed: 11/21/2022]
|
25
|
Preparation of magnetic TNT-imprinted polymer nanoparticles and their accumulation onto magnetic carbon paste electrode for TNT determination. Biosens Bioelectron 2014; 61:532-40. [DOI: 10.1016/j.bios.2014.05.041] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 05/18/2014] [Indexed: 11/23/2022]
|
26
|
Purification and characterization of melanogenic enzyme tyrosinase from button mushroom. Enzyme Res 2014; 2014:120739. [PMID: 25197562 PMCID: PMC4150416 DOI: 10.1155/2014/120739] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 07/18/2014] [Accepted: 07/23/2014] [Indexed: 12/05/2022] Open
Abstract
Melanogenesis is a biosynthetic pathway for the formation of the pigment melanin in human skin. A key enzyme, tyrosinase, catalyzes the first and only rate-limiting steps in melanogenesis. Since the discovery of its melanogenic properties, tyrosinase has been in prime focus and microbial sources of the enzyme are sought. Agaricus bisporus widely known as the common edible mushroom, it's taking place in high amounts of proteins, enzyme, carbohydrates, fibers, and low fat contents are frequently cited in the literature in relation to their nutritional value. In the present study tyrosinase from Agaricus bisporus was purified by ammonium sulphate precipitation, dialysis followed by gel filtration chromatography on Sephadex G-100, and ion exchange chromatography on DEAE-Cellulose; the enzyme was purified, 16.36-fold to give 26.6% yield on total activity in the crude extract and final specific activity of 52.19 U/mg. The SDS-PAGE electrophoresis showed a migrating protein band molecular weight of 95 kDa. The purified tyrosinase was optimized and the results revealed that the optimum values are pH 7.0 and temperature 35°C. The highest activity was reported towards its natural substrate, L-DOPA, with an apparent Km value of 0.933 mM. This indicated that tyrosinase purified from Agaricus bisporus is a potential source for medical applications.
Collapse
|
27
|
Guldu OK, Ece S, Evran S, Medine EI, Demirkol DO, Unak P, Timur S. Isolation and Immobilization of His-Tagged Alcohol Dehydrogenase on Magnetic Nanoparticles in One Step: Application as Biosensor Platform. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2014. [DOI: 10.1080/10601325.2014.936236] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
28
|
Microbial tyrosinases: promising enzymes for pharmaceutical, food bioprocessing, and environmental industry. Biochem Res Int 2014; 2014:854687. [PMID: 24895537 PMCID: PMC4033337 DOI: 10.1155/2014/854687] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 03/31/2014] [Indexed: 12/20/2022] Open
Abstract
Tyrosinase is a natural enzyme and is often purified to only a low degree and it is involved in a variety of functions which mainly catalyse the o-hydroxylation of monophenols into their corresponding o-diphenols and the oxidation of o-diphenols to o-quinones using molecular oxygen, which then polymerizes to form brown or black pigments. The synthesis of o-diphenols is a potentially valuable catalytic ability and thus tyrosinase has attracted a lot of attention with respect to industrial applications. In environmental technology it is used for the detoxification of phenol-containing wastewaters and contaminated soils, as biosensors for phenol monitoring, and for the production of L-DOPA in pharmaceutical industries, and is also used in cosmetic and food industries as important catalytic enzyme. Melanin pigment synthesized by tyrosinase has found applications for protection against radiation cation exchangers, drug carriers, antioxidants, antiviral agents, or immunogen. The recombinant V. spinosum tryosinase protein can be used to produce tailor-made melanin and other polyphenolic materials using various phenols and catechols as starting materials. This review compiles the recent data on biochemical and molecular properties of microbial tyrosinases, underlining their importance in the industrial use of these enzymes. After that, their most promising applications in pharmaceutical, food processing, and environmental fields are presented.
Collapse
|
29
|
Scavetta E, Casagrande A, Gualandi I, Tonelli D. Analytical performances of Ni LDH films electrochemically deposited on Pt surfaces: Phenol and glucose detection. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.03.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
30
|
Nadifiyine S, Haddam M, Mandli J, Chadel S, Blanchard CC, Marty JL, Amine A. Amperometric Biosensor Based on Tyrosinase Immobilized on to a Carbon Black Paste Electrode for Phenol Determination in Olive Oil. ANAL LETT 2013. [DOI: 10.1080/00032719.2013.811679] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
31
|
|
32
|
Nurul Karim M, Lee HJ. Amperometric phenol biosensor based on covalent immobilization of tyrosinase on Au nanoparticle modified screen printed carbon electrodes. Talanta 2013; 116:991-6. [PMID: 24148506 DOI: 10.1016/j.talanta.2013.08.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 08/06/2013] [Accepted: 08/06/2013] [Indexed: 11/18/2022]
Abstract
A highly selective and sensitive amperometric biosensor for the detection of phenol was developed based on a platform where Au nanoparticles (AuNPs) are electrodeposited onto a disposable screen printed carbon electrode and tyrosinase is then covalently immobilized on the AuNP's using alkanethiol and cross-linker molecules. The electrocatalytic responses of the tyrosinase modified biosensor for the detection of phenol were measured using both cyclic voltammetry and square wave voltammetry. Temperature, buffer pH and the amount of tyrosinase immobilized on the electrode surface were also optimized for phenol sensing. A high sensitivity of 15.7 µA ppm(-1), a low detectable phenol concentration of 47 ppb alongside a linear response from 47 ppb to 15 ppm was achieved using square wave voltammetry in addition to good selectivity. As a demonstration, the biosensor was applied to determine phenol concentrations in regional water samples from S. Korea.
Collapse
Affiliation(s)
- Md Nurul Karim
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 1370 Sankyuk-dong, Buk-gu, Daegu 702-701, Republic of Korea
| | | |
Collapse
|
33
|
Wang L, Yang T, Yang J, Li Q, Hao D, Yang J, Ma G. In situ magnetization technique for synthesis of magnetic polymer microspheres. POWDER TECHNOL 2013. [DOI: 10.1016/j.powtec.2012.12.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
34
|
Rather JA, Pilehvar S, De Wael K. A biosensor fabricated by incorporation of a redox mediator into a carbon nanotube/nafion composite for tyrosinase immobilization: detection of matairesinol, an endocrine disruptor. Analyst 2013; 138:204-10. [DOI: 10.1039/c2an35959f] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
35
|
Netto CG, Toma HE, Andrade LH. Superparamagnetic nanoparticles as versatile carriers and supporting materials for enzymes. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2012.08.010] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
36
|
Magnetic techniques for the detection and determination of xenobiotics and cells in water. Anal Bioanal Chem 2012; 404:1257-73. [DOI: 10.1007/s00216-012-6056-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 04/15/2012] [Accepted: 04/16/2012] [Indexed: 10/28/2022]
|
37
|
Xue Y, Zhang S, Huang Y, Zhang T, Liu X, Hu Y, Zhang Z, Tang M. Acute toxic effects and gender-related biokinetics of silver nanoparticles following an intravenous injection in mice. J Appl Toxicol 2012; 32:890-9. [PMID: 22522906 DOI: 10.1002/jat.2742] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 01/30/2012] [Accepted: 01/30/2012] [Indexed: 02/03/2023]
Abstract
This study evaluated the acute toxicity and biokinetics of intravenously administered silver nanoparticles (AgNPs) in mice. Mice were exposed to different dosages of AgNPs (7.5, 30 or 120 mg kg(-1) ). Toxic effects were assessed via general behavior, serum biochemical parameters and histopathological observation of the mice. Biokinetics and tissue distribution of AgNPs were evaluated at a dose of 120 mg kg(-1) in both male and female mice. Inductively coupled plasma-mass spectrometry (ICP-MS) was used to determine silver concentrations in blood and tissue samples collected at predetermined time intervals. After 2 weeks, AgNPs exerted no obvious acute toxicity in the mice. However, inflammatory reactions in lung and liver cells were induced in mice treated at the 120 mg kg(-1) dose level. The highest silver levels were observed in the spleen, followed by liver, lungs and kidneys. The elimination half-lives and clearance of AgNPs were 15.6 h and 1.0 ml h(-1) g(-1) for male mice and 29.9 h and 0.8 ml h(-1) g(-1) for female mice. These results indicated that AgNPs could be distributed extensively to various tissues in the body, but primarily in the spleen and liver. Furthermore, there appears to be gender-related differences in the biokinetic profiles in blood and distribution in lungs and kidneys following an intravenous injection of AgNPs. The data from this study provides information on toxicity and biodistribution of AgNPs following intravenous administration in mice, which represents the worst case scenario of toxicity among all the different administration routes, and may shed light in the future use of products containing AgNPs in humans.
Collapse
Affiliation(s)
- Yuying Xue
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, Jiangsu Key Laboratory for Biomaterials and Devices, School of Public Health, Southeast University, No. 87 Dingjiaqiao, Nanjing, 210009, China.
| | | | | | | | | | | | | | | |
Collapse
|
38
|
References. Anal Chem 2012. [DOI: 10.1201/b11478-14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
39
|
Amperometric biosensor based on hemoglobin immobilized on Cu2S nanorods/nafion nanocomposite film for the determination of polyphenols. J Solid State Electrochem 2012. [DOI: 10.1007/s10008-012-1673-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
40
|
Gonzalez JS, Hoppe CE, Muraca D, Sánchez FH, Alvarez VA. Synthesis and characterization of PVA ferrogels obtained through a one-pot freezing–thawing procedure. Colloid Polym Sci 2011. [DOI: 10.1007/s00396-011-2501-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
41
|
Rounaghi G, Mohammad Zadeh Kakhki R, Heidari T. Artificial Neural Networks Applied for Simultaneous Analysis of Mixtures of Nitrophenols by Conductometric Acid–Base Titration. Ind Eng Chem Res 2011. [DOI: 10.1021/ie200900z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gholamhossein Rounaghi
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Tahereh Heidari
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
| |
Collapse
|
42
|
Biosensor based on a glassy carbon electrode modified with tyrosinase immmobilized on multiwalled carbon nanotubes. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0616-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
43
|
Hu Y, Li J, Zhang Z, Zhang H, Luo L, Yao S. Imprinted sol-gel electrochemical sensor for the determination of benzylpenicillin based on Fe3O4@SiO2/multi-walled carbon nanotubes-chitosans nanocomposite film modified carbon electrode. Anal Chim Acta 2011; 698:61-8. [PMID: 21645660 DOI: 10.1016/j.aca.2011.04.054] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 04/25/2011] [Accepted: 04/25/2011] [Indexed: 11/17/2022]
Abstract
Herein, a novel imprinted sol-gel electrochemical sensor based on multi-walled carbon nanotubes (MWNTs) doped with chitosan film on a carbon electrode has been developed. Prior to doped, the MWNTs have been decorated with Fe(3)O(4) nanoparticles which have been coated uniformly with SiO(2) layer. The characterization of imprinted sensor has been carried out by X-ray diffraction and scanning electron microscopy. The performance of the proposed imprinted sensor has been investigated using cyclic voltammetry and differential pulse voltammetry. The imprinted sensor offers a fast response and sensitive benzylpenicillin quantification. The fabricated benzylpenicillin imprinted sensor exhibits a linear response from 5.0×10(-8) to 1.0×10(-3) mol L(-1) with a detection limit of 1.5×10(-9) mol L(-1). For samples analysis, perfect recoveries of the imprinted sensor for benzylpenicillin indicated that the imprinted sensor was able to detect benzylpenicillin in real samples successfully.
Collapse
Affiliation(s)
- Yufang Hu
- College of Chemistry and Chemical Engineering, Jishou University, Hunan, PR China
| | | | | | | | | | | |
Collapse
|
44
|
Zapp E, Brondani D, Vieira IC, Dupont J, Scheeren CW. Gold Nanoparticles and Hydrophobic Ionic Liquid Applied on the Development of a Voltammetric Biosensor for Polyphenol Determination. ELECTROANAL 2011. [DOI: 10.1002/elan.201000732] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
45
|
Electrochemical detection of phenolic compounds using composite film of multiwall carbon nanotube/surfactant/tyrosinase on a carbon paste electrode. J Solid State Electrochem 2011. [DOI: 10.1007/s10008-011-1355-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
46
|
Peng Y, Xu J, Zhao J, Hu B, Hu S. Electrochemical behavior of phenol at acetylene black-dihexadecyl hydrogen phosphate composite modified glassy carbon electrode in the presence of cetyltrimethylammonium bromide. RUSS J ELECTROCHEM+ 2011. [DOI: 10.1134/s1023193508020079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
47
|
Lee JM, Xu GR, Kim BK, Choi HN, Lee WY. Amperometric Tyrosinase Biosensor Based on Carbon Nanotube-Doped Sol-Gel-Derived Zinc Oxide-Nafion Composite Films. ELECTROANAL 2011. [DOI: 10.1002/elan.201000556] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
48
|
Voltammetric detection of synthetic water-soluble phenolic antioxidants using carbon nanotube based electrodes. J Solid State Electrochem 2011. [DOI: 10.1007/s10008-011-1295-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
49
|
A DNA sequence-specific electrochemical biosensor based on alginic acid-coated cobalt magnetic beads for the detection of E. coli. Biosens Bioelectron 2011; 26:3325-30. [PMID: 21277764 DOI: 10.1016/j.bios.2011.01.007] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 01/04/2011] [Accepted: 01/05/2011] [Indexed: 11/22/2022]
Abstract
A new type of DNA sequence-specific electrochemical biosensor based on magnetic beads for the detection of Escherichia coli is reported in the present work. Alginic acid-coated cobalt magnetic beads, capped with 5'-(NH(2)) oligonucleotide and employed not only for magnetic separation but also as the solid adsorbent, were used as DNA probes to hybridize with the target E. coli DNA sequence. This assay was specific for E. coli detection depending on the uid A gene, which encodes for the enzyme β-d-glucuronidase produced by E. coli strains. When daunomycin (DNR) was used as DNA hybridization indicator, the target sequences of E. coli hybridized with the probes resulted in the decrease of DNR reduction peak current, which was proportional to the E. coli concentration. The optimization of the hybridization detection was carried out and the specificity of the probes was also demonstrated. This DNA biosensor can be employed to detect a complementary target sequence for 3.0×10(-10) mol/L and denatured PCR products for 0.5 ng/μL. The linear range of the developed biosensor for the detection of E. coli cells was from 1.0×10(2) to 2.0×10(3) cells/mL with a detection limit of 50 cells/mL. After a brief enrichment process, a concentration of 10 cells/mL E. coli in real water samples was detected by the electrochemical biosensor.
Collapse
|
50
|
Beveridge JS, Stephens JR, Williams ME. The use of magnetic nanoparticles in analytical chemistry. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2011; 4:251-73. [PMID: 21417723 DOI: 10.1146/annurev-anchem-061010-114041] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Magnetic nanoparticles uniquely combine superparamagnetic behavior with dimensions that are smaller than or the same size as molecular analytes. The integration of magnetic nanoparticles with analytical methods has opened new avenues for sensing, purification, and quantitative analysis. Applied magnetic fields can be used to control the motion and properties of magnetic nanoparticles; in analytical chemistry, use of magnetic fields provides methods for manipulating and analyzing species at the molecular level. In this review, we describe applications of magnetic nanoparticles to analyte handling, chemical sensors, and imaging techniques.
Collapse
Affiliation(s)
- Jacob S Beveridge
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16803, USA.
| | | | | |
Collapse
|